Material which is magnetic Material which is magnetic There are a few materials which are naturally magnetic, and have the potential to be turned into magnets. Some of these materials are iron hematite magnetite ionized gases (such as the material stars are made of) A magnet can be made to ...

Bar Magnet and Compass Interactive Bar Magnet and Compass Interactive The black rectangle represents a bar magnet. The magnet’s North and South poles are labeled. The other item represents a compass; the red end of the needle is the end that would point towards Earth’s North Magnetic Pole. Notice that the red end of the compass needle points ...

Disk Magnet and Compass Interactive Disk Magnet and Compass Interactive he black circle represents a ceramic disk magnet, with the north pole side up. The other item represents a compass; the red end of the needle is the end that would point towards Earth’s North Magnetic Pole. Notice that the red end of the compass needle ...

The Invisible World of Magnetic Fields The Invisible World of Magnetic Fields A bar magnet is a seemingly ordinary piece of metal from which invisible magnetic field lines originate. These magnetic field lines effect any magnetic material in the vicinity of the magnet. Magnets have a north pole where, by ...

The Force of Magnetism The Force of Magnetism You may ask, how does the force of, Magnetism work? The force of magnetis,m is directed from one pole to another. A pole can be described as the point where lines of magnetic force come together. Most simple magnets have two poles (that makes them ...

Magnetism Magnetism is one of the main forces of nature, like the force of gravity. Like gravity, which causes objects to be attracted to each other, magnetis,m causes magnetized objects to be attracted to each other. In most cases, planetary magnetic fields are made by currents of molten material which move around ...

The Magnetic Field The Magnetic Field The force of magnetism causes material to point along the direction the magnetic force points. As shown in the diagram to the left, the force of magnetism is illustrated by lines, which represent the force. In this diagram, the force points from the positive pole to the ...

Lightning Formation Lightning Formation The sky is filled with electric charge. In a calm sky, the positive (+) and negative (-) charges are evenly spaced throughout the atmosphere. Therefore, a calm sky has a neutral charge. Inside a thunderstorm, the electric charge is spread out differently. A thunderstorm is made up of ...

Conductors versus Semiconductors Conductors versus Semiconductors The comparison between the behavior of a normal electric circuit and a semiconductor graphically illustrates the differences that make a semiconductor so useful and unique. The circuit on the top left is very similar in layout to the field effect transistor circuit on the ...

Home Delivery of Voltage — You Supply the Electrons Electric power Electric power supplied to homes and businesses is typically AC (alternating current). The electrons do not travel along the power lines overhead but vibrate back and forth at 60 times per second within these lines. The AC outlet in ...